Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to Mount Everest
- Will pass within 27,173,056 km of Earth in 2098
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
523630 (2009 OG) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2009 OG as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2009 OG orbits the sun every 1,630 days (4.46 years), coming as close as 0.38 AU and reaching as far as 5.03 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2009 OG is probably between 1.602 to 3.581 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.
Close Approaches
2009 OG's orbit is 0.04 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.
2009 OG has 3 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 26, 2098 | 27,173,056 | 40.075 |
| July 31, 2138 | 17,485,277 | 38.014 |
| July 31, 2178 | 15,937,361 | 37.477 |
Images and Observations
2009 OG's orbit is determined by observations dating back to July 17, 2009. It was last officially observed on April 8, 2023. The IAU Minor Planet Center records 309 observations used to determine its orbit.
Accessibility and Exploration
This asteroid is not considered a viable target for human exploration by the NHATS study.Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2009 OG:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.705 AU
- Eccentricity: 0.8586
- Inclination: 48.39°
- Longitude of Ascending Node: 309.39°
- Argument of Periapsis: 114.16°
- Mean Anomaly: 49.18°
Physical Characteristics
- Diameter: ~2.068 km
- Magnitude: 16.1
Derived Characteristics
- Orbit Period: 1,630 days (4.46 years)
- Avg. Orbit Speed: 18.05 km/s
- Aphelion Distance: 5.03 AU
- Perihelion Distance: 0.38 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 523630 (2009 OG) is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.
Size Rendering
The above comparison is an artistic rendering that uses available data on the diameter of 2009 OG to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.
